Intelligent well lid electronic lock with breakage-proof function

Abstract

The invention discloses an intelligent well lid electronic lock with an anti-damage function, and belongs to the technical field of well lids. Comprising a well lid assembly, a well base, an electronic lock assembly and a key assembly. The electronic lock assembly comprises a driving box, a driving assembly and a transmission rod, and the transmission rod is matched with the output end of the driving assembly in an inserted mode. The driving box is rotatably connected with a rotating block, the transmission rod is slidably connected with the rotating block, the rotating block is provided with two sets of connecting rods, one end of each connecting rod is rotatably connected with the rotating block, the other end of each connecting rod is rotatably connected with a limiting rod, and the limiting rods are slidably connected with the well lid assembly; a protection assembly is installed on the well lid assembly, and a transmission assembly is installed on the transmission rod. The key assembly penetrates through the well lid assembly and is inserted into the protection assembly to drive the protection assembly to descend to the set position, the transmission rod is separated from the output end of the driving assembly, the key assembly is rotated and transmitted through the transmission assembly, and therefore the transmission rod is driven to mechanically drive and control the limiting rod to be inserted into or separated from the well seat.

Description

Technical Field

[0001] The present invention relates to the technical field of manhole covers, and more specifically to an intelligent manhole cover electronic lock with an anti-destruction function. Background Art

[0002] The smart manhole cover electronic lock is intelligent and integrated. It can not only realize remote monitoring and security management, but also interconnect with other systems of the smart city, and has the functions of authorized unlocking and manhole cover status perception. However, after the power is off, the existing smart manhole cover electronic lock cannot be remotely controlled, and the output shaft of the driving motor of the electronic lock is in a braking state due to the brake or self-locking circuit, which causes the transmission of the electronic lock to be blocked, increasing the difficulty of manually opening the manhole cover. In view of this, we propose a smart manhole cover electronic lock with anti-destruction function. Summary of the invention

[0003] The purpose of the present invention is to provide an intelligent manhole cover electronic lock with an anti-destruction function, which solves the technical problem in the prior art that after the intelligent manhole cover electronic lock is powered off, the transmission of the electronic lock is blocked and it is difficult to open the manhole cover manually.

[0004] The embodiment of the present invention provides a smart manhole cover electronic lock with an anti-destruction function, including a manhole cover assembly, a manhole seat, an electronic lock assembly and a key assembly;

[0005] The electronic lock assembly comprises a drive box, a drive assembly and a transmission rod, and the transmission rod is plugged and matched with the output end of the drive assembly;

[0006] The driving box is rotatably connected with a rotating block, the transmission rod is slidably connected with the rotating block, two sets of connecting rods are arranged on the rotating block, one end of the connecting rod is rotatably connected with the rotating block, and the other end is rotatably connected with a limiting rod, the limiting rod is slidably connected with the manhole cover assembly, the limiting rod is inserted into the manhole seat, and the manhole cover assembly is limited on the manhole seat;

[0007] A protection component is installed on the manhole cover component, and a transmission component is installed on the transmission rod;

[0008] The key assembly passes through the manhole cover assembly and is inserted into the protection assembly to drive the protection assembly down to a set position, so that the transmission rod is disengaged from the output end of the driving assembly, the key assembly is rotated and transmitted through the transmission assembly, thereby driving the transmission rod mechanically to control the limit rod to insert or disengage from the well seat.

[0009] Preferably, the manhole cover assembly comprises a manhole cover body, the manhole cover body is rotatably connected to the manhole seat, a lock hole is provided on the manhole cover body, a fixing pipe connected to the lock hole is fixedly installed at the bottom of the manhole cover body, and a limit rod is slidably connected to the manhole cover body;

[0010] The fixed tube and the axis of the lock hole are colinear, a safety box is fixedly installed at the bottom of the manhole cover body, the drive box is fixedly installed in the safety box, and the connecting rod passes through the safety box;

[0011] A first spring pin and a second spring pin are fixedly installed in the safety box.

[0012] Preferably, the protection component includes a protection tube, which is slidably connected to the fixed tube, and the bottom of the protection tube is rotatably connected to a rotating tube, which passes through the bottom of the safety box, and a tooth tip ring is fixedly installed on the rotating tube. The protection tube is connected to a first limit hole and a second limit hole, and the second limit hole is directly above the first limit hole. The first spring pin and the second spring pin are inserted into the corresponding first limit hole or the second limit hole to limit and fix the protection tube. The protection tube is connected to a power connection hole, and a positioning block is fixedly installed in the rotating tube.

[0013] Preferably, the transmission assembly includes a lifting frame and a third gear, the lifting frame is slidably connected to the safety box, the third gear is fixedly installed at the bottom of the transmission rod, the lifting frame is rotatably connected with a fourth gear and a sleeve, the inner diameter of the sleeve is larger than the outer diameter of the rotating tube and the axes are colinear, a fifth gear is fixedly installed on the sleeve, the fifth gear and the third gear are both meshed with the fourth gear for transmission, a tooth groove is opened at the bottom of the sleeve, the tooth tip ring is located directly above the tooth groove, and the tooth tip ring descends to a set position to mesh with the tooth groove;

[0014] A support tube is fixedly installed on the lifting frame, the support tube is inserted into the bottom of the rotating block, the transmission rod is rotatably connected to the support tube, and a second elastic member is sleeved on the transmission rod, one end of the second elastic member is fixedly connected to the rotating block, and the other end is fixedly connected to the support tube.

[0015] Preferably, it also includes a power supply assembly, which includes a power supply, a male connector and a female connector. A tube body is installed on the drive box, the female connector is fixedly installed in the tube body and is located at one end close to the protective tube. The female connector and the drive assembly are electrically connected, and a third elastic member is mounted on the male connector.

[0016] Preferably, the key assembly includes a guide tube, a first lifting rod and a second lifting rod, the power supply is fixedly installed in the guide tube, the connecting male head is slidably connected to the guide tube, the guide tube is plugged and matched with the lock hole, the first lifting rod and the second lifting rod are both slidably connected to the guide tube, a first tilting block is fixedly installed on the first lifting rod, the connecting male head is located above the first tilting block, one end of the third elastic member is fixedly connected to the guide tube, and the other end is fixedly connected to the connecting male head;

[0017] Two groups of second inclined blocks are fixedly installed on the second lifting rod, the first inclined block is located above the two groups of second inclined blocks, the first lifting rod passes through the two groups of second inclined blocks, the second lifting rod passes through the first inclined block, two groups of top rods are slidably connected to the guide tube, the top rod is sleeved with a fourth elastic member, one end of the fourth elastic member is fixedly connected to the guide tube, and the other end is fixedly connected to the top rod.

[0018] Preferably, a third tilting block is provided on the connecting male head, and a pressure rod is fixedly mounted on the first lifting rod, and the pressure rod is located directly above the connecting male head.

[0019] Preferably, the first lifting rod and the second lifting rod are both fixedly connected with a fixing rod, the guide tube is fixedly connected with a fixing frame, and the two fixing rods are both slidably connected with the fixing frame;

[0020] The key assembly also includes a plurality of fifth elastic members, one end of the fifth elastic member is connected to the fixing frame, and the other end is connected to the fixing rod, and a positioning groove is provided at the bottom of the guide tube.

[0021] Preferably, the diameter of the push rod is smaller than the diameter of the first spring pin or the second spring pin.

[0022] Preferably, a calibration arrow is fixedly mounted on the manhole cover body, a calibration groove is provided on the guide tube, and the calibration arrow is used for position calibration of the calibration groove.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0024] 1. When the power is off, the key assembly is inserted into the protective assembly to a set depth and rotated, and the transmission assembly transmits the power, thereby driving the transmission rod to rotate. The transmission rod transmits and drives the limit rod to separate from the well seat, thereby realizing manual mechanical unlocking, thereby improving the flexibility of opening the well cover. During manual mechanical unlocking, the transmission rod can be separated from the output end of the drive assembly, thereby avoiding the problem that the output end of the drive assembly is locked and cannot be rotated to control the opening.

[0025] 2. The key assembly of the present invention also has the ability to supply power to the drive assembly. By controlling the corresponding depth of the key assembly inserted into the protective assembly and controlling the connection between the male connector and the female connector, manual power supply to the drive assembly can be achieved, reducing the difficulty of driving the limit rod out of the well seat and improving operating efficiency.

[0026] 3. The present invention fixes the protective tube by inserting a limit pin into the limit hole. When a key is not available, it is difficult to control the movement of the protective component from the key hole, thereby protecting the electronic lock component in the safe and effectively reducing the risk of damage. At the same time, the limit pin is also used for the plug-in positioning of the male and female connectors of the power supply component, reducing the difficulty of plug-in positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the overall structure of an intelligent manhole cover electronic lock with an anti-destruction function disclosed in a preferred embodiment of the present invention;

[0028] Figure 2 A cross-sectional view of a smart manhole cover electronic lock with an anti-destruction function disclosed in a preferred embodiment of the present invention;

[0029] Figure 3 A partial cross-sectional view of a smart manhole cover electronic lock with anti-destruction function disclosed in a preferred embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the connection structure of an electronic lock component of an intelligent manhole cover electronic lock with an anti-destruction function disclosed in a preferred embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of a partial electronic lock component of an intelligent manhole cover electronic lock with an anti-destruction function disclosed in a preferred embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the connection structure of a transmission component of an intelligent manhole cover electronic lock with an anti-destruction function disclosed in a preferred embodiment of the present invention;

[0033] Figure 7 A schematic diagram of the connection between a key component and a protective component of a smart manhole cover electronic lock with an anti-destruction function disclosed in a preferred embodiment of the present invention;

[0034] Figure 8 A cross-sectional view of a key assembly of a smart manhole cover electronic lock with an anti-destruction function disclosed in a preferred embodiment of the present invention;

[0035] Fig. 9 A schematic diagram of the structure of a key component of a smart manhole cover electronic lock with an anti-destruction function disclosed in a preferred embodiment of the present invention;

[0036] Fig.10 A schematic diagram of the location of a calibration slot of an intelligent manhole cover electronic lock with an anti-destruction function disclosed in a preferred embodiment of the present invention.

[0037] Explanation of the reference numerals in the figure: 1. Manhole cover assembly; 2. Manhole seat; 3. Electronic lock assembly; 4. Protection assembly; 5. Transmission assembly; 6. Power supply assembly; 7. Key assembly; 11. Manhole cover body; 12. Lock hole; 13. Fixing pipe; 14. Safety box; 15. First spring pin; 16. Second spring pin; 17. Guide rod; 18. Calibration arrow; 31. Drive box; 32. Transmission rod; 33. Support shaft; 34. Rotating block; 35. Connecting rod; 36. Limit rod; 37. Guide frame; 38. First elastic member; 39. Tube body; 41. Protection tube; 42. Rotating tube; 43. Tooth tip ring; 44. First limiting hole; 45. Second limiting hole; 46 , power connection hole; 47, positioning block; 48, pressure block; 51, lifting frame; 52, third gear; 53, fourth gear; 54, sleeve; 55, fifth gear; 56, tooth groove; 57, support tube; 58, second elastic member; 61, power supply; 62, male connector; 63, female connector; 64, third tilting block; 65, third elastic member; 71, guide tube; 72, first lifting rod; 73, second lifting rod; 74, first tilting block; 75, second tilting block; 76, push rod; 77, fourth elastic member; 78, pressure rod; 79, fixing rod; 710, fixing frame; 711, fifth elastic member; 712, positioning groove; 713, calibration groove. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Reference Figures 1 to 3 A smart manhole cover electronic lock with anti-destruction function includes a manhole cover assembly 1, a manhole seat 2 and an electronic lock assembly 3. The manhole cover assembly 1 includes a manhole cover body 11, which is rotatably connected to the manhole seat 2. A lock hole 12 is opened on the manhole cover body 11. A fixed pipe 13 connected to the lock hole 12 is fixedly installed at the bottom of the manhole cover body 11. The axis of the fixed pipe 13 and the lock hole 12 are colinear. A safety box 14 is fixedly installed at the bottom of the manhole cover body 11. The fixed pipe 13 is in the safety box 14. A first spring pin 15 and a second spring pin 16 are fixedly installed in the safety box 14. The second spring pin 16 is directly above the first spring pin 15. A plurality of guide rods 17 are fixedly installed in the safety box 14. A calibration arrow 18 is fixedly installed on the manhole cover body 11.

[0040] Reference Figures 2 to 5The electronic lock assembly 3 includes a drive box 31, a drive assembly and a transmission rod 32. The drive box 31 is fixedly installed in the safety box 14. The drive assembly includes a motor, a first gear and a second gear. The motor is fixedly installed in the drive box 31. The first gear is fixedly installed on the output shaft of the motor. The second gear is rotatably connected with the drive box 31 through a support shaft 33. The support shaft 33 passes through the drive box 31. The transmission rod 32 is plugged and matched with the support shaft 33. The support shaft 33, as the output end of the drive assembly, drives the transmission rod 32 inserted therein to rotate. Specifically, the output shaft of the motor drives the first gear to rotate, and drives the second gear and the support shaft 33 to rotate through meshing transmission, thereby transmitting the rotational force to the transmission rod 32. In order to ensure the stability of the transmission rod 32 following the rotation of the support shaft 33, the transmission rod 32 can be designed as a regular prism shape, which can effectively transmit power while also reducing the difficulty of inserting the transmission rod 32 into the support shaft 33.

[0041] A rotating block 34 is rotatably connected to the driving box 31, and the transmission rod 32 is slidably connected to the rotating block 34 and passes through the rotating block 34. Two groups of connecting rods 35 are arranged on the rotating block 34, and the connecting rod 35 passes through the safety box 14. One end of the connecting rod 35 is rotatably connected to the rotating block 34, and the other end is rotatably connected to the limiting rod 36, and the limiting rod 36 is slidably connected to the guide frame 37. The guide frame 37 is fixedly installed on the manhole cover body 11, so that the limiting rod 36 is slidably connected to the manhole cover body 11, and the limiting rod 36 is inserted into the plug-in hole of the well seat 2, so that the manhole cover body 11 is limited on the well seat 2. A first elastic member 38 is mounted on the limiting rod 36, and one end of the first elastic member 38 is fixedly connected to the limiting rod 36, and the other end is fixedly connected to the guide frame 37. The first elastic member 38 is used to pull the limiting rod 36, so as to keep the limiting rod 36 stably plugged into the well seat 2.

[0042] It should be noted that the driving component of the electronic lock component 3 can be intelligently remotely controlled by remote control, such as by setting a number for the manhole cover and interconnecting it with the remote control system network, and by inputting the specified manhole cover number, the driving component response is controlled, and then the movement of the limit rod 36 is controlled.

[0043] Reference Figure 2 , Figure 3 , Figure 6 and Figure 7A protective assembly 4 is installed on the fixed tube 13, and the protective assembly 4 includes a protective tube 41. The protective tube 41 is slidably connected to the fixed tube 13. The bottom of the protective tube 41 is rotatably connected to a rotating tube 42, and the rotating tube 42 passes through the bottom of the safety box 14. A tooth tip ring 43 is fixedly installed on the rotating tube 42. A first limiting hole 44 and a second limiting hole 45 are connected and opened on the protective tube 41. The second limiting hole 45 is located directly above the first limiting hole 44. The first spring pin 15 and the second spring pin 16 are inserted into the corresponding first limiting hole 44 or the second limiting hole 45 to limit and fix the protective tube 41. A power connection hole 46 is connected and opened on the protective tube 41. When the first spring pin 15 is inserted into the first limiting hole 44 and the second spring pin 16 is inserted into the second limiting hole 45, the protective tube 41 is in an initial position, and the power connection hole 46 is blocked by the fixed tube 13. A positioning block 47 is fixedly installed in the rotating tube 42, and a pressing block 48 is fixedly installed on the protective tube 41. The protective tube 41 is fixed by inserting a limit pin into the limit hole. When a key is not available, it is difficult to control the movement of the protective component 4 from the lock hole 12, thereby effectively protecting the electronic lock component 3 in the safety box 14 and effectively reducing the risk of damage.

[0044] The manhole cover electronic lock also includes a transmission assembly 5, which includes a lifting frame 51 and a third gear 52. The lifting frame 51 is slidably connected to the safety box 14 through a plurality of guide rods 17. The third gear 52 is fixedly installed at the bottom of the transmission rod 32. The lifting frame 51 is rotatably connected with a fourth gear 53 and a sleeve 54. The inner diameter of the sleeve 54 is larger than the outer diameter of the rotating tube 42 and the axes are colinear. A fifth gear 55 is fixedly installed on the sleeve 54. The fifth gear 55 and the third gear 52 are both meshed with the fourth gear 53 for transmission. A tooth groove 56 is provided at the bottom of the sleeve 54. The tooth tip ring 43 is located directly above the tooth groove 56. The tooth tip ring 43 can engage with the tooth groove 56 when it moves downward. The vertical spacing between the pressure block 48 and the lifting frame 51 is equal to the spacing between the tooth tip ring 43 and the tooth groove 56.

[0045] A support tube 57 is fixedly mounted on the lifting frame 51, and the support tube 57 is plugged into the bottom of the rotating block 34. The transmission rod 32 is rotatably connected to the support tube 57. A second elastic member 58 is sleeved on the transmission rod 32, and one end of the second elastic member 58 is fixedly connected to the rotating block 34, and the other end is fixedly connected to the support tube 57. The tooth tip ring 43 descends and engages with the tooth groove 56, and drives the sleeve 54 and the fifth gear 55 to rotate by controlling the rotation of the rotating tube 42, and drives the fourth gear 53, the third gear 52 and the transmission rod 32 to rotate through meshing transmission, and the transmission rod 32 drives the rotating block 34 to rotate, so that the connecting rod 35 drives the limit rod 36 to slide, so that the limit rod 36 is inserted into or separated from the well seat 2, and an external force mechanical drive is realized.

[0046] Reference Figure 3 , Figure 6 and Figure 7The manhole cover electronic lock also includes a power supply assembly 6, which includes a power supply 61, a male connector 62 and a female connector 63. The drive box 31 is connected and installed with a pipe body 39, which is arranged horizontally. The female connector 63 is fixedly installed in the pipe body 39 and is located at one end close to the protective tube 41. The female connector 63 is electrically connected to the drive assembly, and a third tilting block 64 is arranged on the male connector 62. A third elastic member 65 is mounted on the male connector 62. By inserting the male connector 62 into the female connector 63, the drive assembly is powered, thereby controlling the movement of the limit rod 36 of the electronic lock assembly 3.

[0047] Reference Figure 1 , Figures 7 to 10 The manhole cover electronic lock also includes a key assembly 7, which includes a guide tube 71, a first lifting rod 72 and a second lifting rod 73. The power supply 61 is fixedly installed in the guide tube 71, the connecting male head 62 is slidably connected to the guide tube 71, the guide tube 71 is plugged into the lock hole 12, the first lifting rod 72 and the second lifting rod 73 are slidably connected to form a round rod, the first lifting rod 72 and the second lifting rod 73 are both slidably connected to the guide tube 71, a first tilting block 74 is fixedly installed on the first lifting rod 72, the connecting male head 62 is located above the first tilting block 74, one end of the third elastic member 65 is fixedly connected to the guide tube 71, and the other end is fixedly connected to the connecting male head 62, the first tilting block 74 moves upward, thereby pushing the connecting male head 62 out of the guide tube 71, and the third elastic member 65 is compressed.

[0048] Two groups of second inclined blocks 75 are fixedly installed on the second lifting rod 73, and there is a certain distance between the two groups of second inclined blocks 75. The first inclined block 74 is above the two groups of second inclined blocks 75. The first lifting rod 72 passes through the two groups of second inclined blocks 75, and the second lifting rod 73 passes through the first inclined block 74. Two groups of push rods 76 are slidably connected to the guide tube 71, and a fourth elastic member 77 is sleeved on the push rod 76. One end of the fourth elastic member 77 is fixedly connected to the guide tube 71, and the other end is fixedly connected to the push rod 76. The second inclined block 75 rises and pushes the corresponding push rod 76 to eject the guide tube 71, and the fourth elastic member 77 is compressed. When the second inclined block 75 descends, under the action of the fourth elastic member 77, the push rod 76 retracts into the guide tube 71.

[0049] A pressure rod 78 is fixedly installed on the first lifting rod 72, and the pressure rod 78 is located directly above the connecting male head 62. After the connecting male head 62 is inserted into the connecting female head 63, the connecting male head 62 cannot automatically detach from the connecting female head 63 due to the plug-in fitting force under the action of the third elastic member 65. At this time, by actively controlling the first lifting rod 72 to descend, the pressure rod 78 pushes the third inclined block 64, thereby forcing the connecting male head 62 to retract into the guide tube 71.

[0050] The first lifting rod 72 and the second lifting rod 73 are both fixedly connected with a fixing rod 79, the guide tube 71 is fixedly connected with a fixing frame 710, and the two fixing rods 79 are both slidably connected with the fixing frame 710. The key assembly 7 also includes a plurality of fifth elastic members 711, one end of the fifth elastic member 711 is connected with the fixing frame 710, and the other end is connected with the fixing rod 79. A positioning groove 712 is provided at the bottom of the guide tube 71, and a calibration groove 713 is provided on the guide tube 71. When the calibration groove 713 is rotated to correspond to the calibration arrow 18, the position of the push rod 76 corresponds to the position of the first spring pin 15 or the second spring pin 16, and the diameter of the push rod 76 is smaller than the diameter of the first spring pin 15 or the second spring pin 16, so that the push rod 76 can push the spring pin.

[0051] Working principle: When the electronic lock of the manhole cover is powered on well, the remote control system controls the electronic lock component 3 of the manhole cover through wireless or wired communication. After the motor receives the driving command, the output shaft of the motor drives the first gear to rotate, and drives the second gear and the support shaft 33 to rotate the transmission rod 32 through meshing transmission. The transmission rod 32 drives the rotating block 34 to rotate, so that the connecting rod 35 drives the limit rod 36 to slide, thereby realizing the insertion or separation of the limit rod 36 from the well seat 2, and realizing the intelligent control of the limit and limit release of the manhole cover.

[0052] When a power outage occurs in the corresponding manhole cover area, the remote control fails. At this time, the key assembly 7 can be used for manual operation. The manual operation includes manual power supply operation and mechanical transmission operation. The manual power supply operation is specifically:

[0053] The guide tube 71 is inserted into the fixed tube 13 from the lock hole 12, and the positioning block 47 is inserted into the positioning groove 712 by rotating the guide tube 71. The guide tube 71 is continuously rotated to rotate the calibration groove 713 to correspond to the calibration arrow 18. At this time, the positions of the two push rods 76 correspond to the first spring pin 15 and the second spring pin 16 respectively. The fixing rod 79 corresponding to the second lifting rod 73 is pulled upward, and the second lifting rod 73 drives the two second tilting blocks 75 to move upward and push the push rod 76. The push rod 76 pushes the first spring pin 15 and the second spring pin 16 out of the first limiting hole 44 or the second limiting hole 45. The fixing frame 710 is pressed downward to drive the guide tube 71 to move down a certain distance, so that the first spring pin 15 and the second spring pin 16 will not automatically insert into the first limiting hole 44 or the second limiting hole 45. In the second limiting hole 45, the protection tube 41 and the rotating tube 42 follow the downward movement. At this time, the fixing rod 79 is released. Under the action of the fifth elastic member 711 and the fourth elastic member 77, the second tilting block 75 and the push rod 76 are reset. The fixing frame 710 is pressed down continuously until the first spring pin 15 is inserted into the second limiting hole 45 and the fixing frame 710 is limited. At this time, the power connection hole 46 is lowered to the height of the connecting female head 63 and the axis is colinear. The fixing rod 79 corresponding to the first lifting rod 72 is pulled upward, so that the first lifting rod 72 drives the first tilting block 74 to move upward to push the connecting male head 62 out of the guide tube 71 and pass through the power connection hole 46, so as to achieve the plugging with the connecting female head 63, thereby realizing the manual power supply process of the driving component, and then by powering and controlling the driving component, the limiting rod 36 is moved. It should be noted that during the manual power supply operation, the tooth tip ring 43 does not engage with the tooth groove 56, and the pressing block 48 does not contact the lifting frame 51.

[0054] The mechanical transmission operation is specifically as follows: after the guide tube 71 is inserted and the positions of the two push rods 76 correspond to the first spring pin 15 and the second spring pin 16 respectively, the fixing rod 79 corresponding to the second lifting rod 73 is pulled upward, and the second lifting rod 73 drives the two second tilting blocks 75 to move upward and push the push rod 76, and the push rod 76 pushes the first spring pin 15 and the second spring pin 16 out of the first limiting hole 44 or the second limiting hole 45, and the fixing frame 710 is pressed downward to drive the guide tube 71 to move downward to the maximum displacement, and the lower During the descending process, the fixing rod 79 corresponding to the second lifting rod 73 is not loosened, and the guide tube 71 pushes the positioning block 47, so that the protection tube 41 and the rotating tube 42 follow the descending. Before descending to the maximum displacement, the tooth tip ring 43 is engaged with the tooth groove 56, and the pressure block 48 contacts the lifting frame 51. The tooth tip ring 43 will drive the sleeve 54 and the transmission assembly 5 to descend, and the support tube 57 of the transmission assembly 5 will drive the transmission rod 32 to descend, so that the transmission rod 32 is separated from the support shaft 33, thereby getting rid of the locking of the output end of the drive assembly;

[0055] The rotating fixed frame 710 drives the rotating tube 42, the tooth tip ring 43, the sleeve 54 and the fifth gear 55 to rotate, and drives the fourth gear 53, the third gear 52, the transmission rod 32 and the rotating block 34 to rotate through meshing transmission. The movement of the limit rod 36 is mechanically controlled through the transmission of the rotating block 34, and the limit rod 36 is separated from the well seat 2 to realize the release of the limit.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent manhole cover electronic lock with anti-destruction function, characterized by: It comprises a manhole cover assembly (1), a manhole seat (2), an electronic lock assembly (3) and a key assembly (7); The electronic lock assembly (3) comprises a drive box (31), a drive assembly and a transmission rod (32), wherein the transmission rod (32) is plug-fitted with an output end of the drive assembly; The driving box (31) is rotatably connected to a rotating block (34), the transmission rod (32) is slidably connected to the rotating block (34), two groups of connecting rods (35) are provided on the rotating block (34), one end of the connecting rod (35) is rotatably connected to the rotating block (34), and the other end is rotatably connected to a limiting rod (36), the limiting rod (36) is slidably connected to the manhole cover assembly (1), and the limiting rod (36) is inserted into the manhole seat (2) to limit the manhole cover assembly (1) on the manhole seat (2); A protection component (4) is installed on the manhole cover component (1), and a transmission component (5) is installed on the transmission rod (32); The key assembly (7) passes through the manhole cover assembly (1) and is inserted into the protection assembly (4) to drive the protection assembly (4) down to a set position, so that the transmission rod (32) is separated from the output end of the drive assembly. The key assembly (7) is rotated and transmitted through the transmission assembly (5), so as to drive the transmission rod (32) to be mechanically driven, and control the limit rod (36) to be inserted into or separated from the manhole seat (2).

2. The intelligent manhole cover electronic lock with anti-destruction function according to claim 1 is characterized in that: The manhole cover assembly (1) comprises a manhole cover body (11), the manhole cover body (11) is rotatably connected to the manhole seat (2), a locking hole (12) is provided on the manhole cover body (11), a fixing pipe (13) connected to the locking hole (12) is fixedly installed at the bottom of the manhole cover body (11), and a limiting rod (36) is slidably connected to the manhole cover body (11); The axes of the fixing tube (13) and the lock hole (12) are colinear, a safety box (14) is fixedly installed at the bottom of the manhole cover body (11), the driving box (31) is fixedly installed in the safety box (14), and the connecting rod (35) passes through the safety box (14); A first spring pin (15) and a second spring pin (16) are fixedly installed in the safety box (14).

3. The intelligent manhole cover electronic lock with anti-destruction function according to claim 2 is characterized in that: The protection assembly (4) comprises a protection tube (41), the protection tube (41) is slidably connected to the fixed tube (13), the bottom of the protection tube 4 (1) is rotatably connected to a rotating tube (42), the rotating tube (42) passes through the bottom of the safety box (14), a tooth tip ring (43) is fixedly installed on the rotating tube (42), a first limiting hole (44) and a second limiting hole (45) are connected and opened on the protection tube (41), the second limiting hole (45) is located directly above the first limiting hole (44), the first spring pin (15) and the second spring pin (16) are inserted into the corresponding first limiting hole (44) or the second limiting hole (45) to limit and fix the protection tube (41), the protection tube (41) is connected and opened with a power connection hole (46), and a positioning block (47) is fixedly installed in the rotating tube (42).

4. The intelligent manhole cover electronic lock with anti-destruction function according to claim 3 is characterized in that: The transmission assembly (5) comprises a lifting frame (51) and a third gear (52), the lifting frame (51) is slidably connected to the safety box (14), the third gear (52) is fixedly mounted on the bottom of the transmission rod (32), a fourth gear (53) and a sleeve (54) are rotatably connected to the lifting frame (51), the inner diameter of the sleeve (54) is larger than the outer diameter of the rotating tube (42) and the axes are colinear, a fifth gear (55) is fixedly mounted on the sleeve (54), the fifth gear (55) and the third gear (52) are both meshed with the fourth gear (53) for transmission, a tooth groove (56) is provided at the bottom of the sleeve (54), a tooth tip ring (43) is located directly above the tooth groove (56), and the tooth tip ring (43) is lowered to a set position to mesh with the tooth groove (56); A support tube (57) is fixedly mounted on the lifting frame (51), the support tube (57) is plugged into the bottom of the rotating block (34), the transmission rod (32) is rotatably connected to the support tube (57), a second elastic member (58) is sleeved on the transmission rod (32), one end of the second elastic member (58) is fixedly connected to the rotating block (34), and the other end is fixedly connected to the support tube (57).

5. The intelligent manhole cover electronic lock with anti-destruction function according to claim 3 is characterized in that: The invention also comprises a power supply assembly (6), wherein the power supply assembly (6) comprises a power source (61), a connecting male head (62) and a connecting female head (63); a tube body (39) is connected and installed on the driving box (31); the connecting female head (63) is fixedly installed in the tube body (39) and is located at one end close to the protective tube (41); the connecting female head (63) and the driving assembly are electrically connected; and a third elastic member (65) is mounted on the connecting male head (62).

6. The intelligent manhole cover electronic lock with anti-destruction function according to claim 5 is characterized in that: The key assembly (7) comprises a guide tube (71), a first lifting rod (72) and a second lifting rod (73); the power supply (61) is fixedly installed in the guide tube (71); the connecting male head (62) is slidably connected to the guide tube (71); the guide tube (71) is plugged into the lock hole (12); the first lifting rod (72) and the second lifting rod (73) are both slidably connected to the guide tube (71); a first tilting block (74) is fixedly installed on the first lifting rod (72); the connecting male head (62) is located above the first tilting block (74); one end of the third elastic member (65) is fixedly connected to the guide tube (71); and the other end is fixedly connected to the connecting male head (62); Two groups of second inclined blocks (75) are fixedly mounted on the second lifting rod (73), the first inclined block (74) is located above the two groups of second inclined blocks (75), the first lifting rod (72) passes through the two groups of second inclined blocks (75), the second lifting rod (73) passes through the first inclined block (74), two groups of push rods (76) are slidably connected to the guide tube (71), a fourth elastic member (77) is sleeved on the push rod (76), one end of the fourth elastic member (77) is fixedly connected to the guide tube (71), and the other end is fixedly connected to the push rod (76).

7. The intelligent manhole cover electronic lock with anti-destruction function according to claim 6 is characterized in that: The connecting male head (62) is provided with a third tilting block (64), and the first lifting rod (72) is fixedly mounted with a pressing rod (78), and the pressing rod (78) is located directly above the connecting male head (62).

8. The intelligent manhole cover electronic lock with anti-destruction function according to claim 6, characterized in that: The first lifting rod (72) and the second lifting rod (73) are both fixedly connected with a fixing rod (79), the guide tube (71) is fixedly connected with a fixing frame (710), and the two fixing rods (79) are both slidably connected with the fixing frame (710); The key assembly (7) further comprises a plurality of fifth elastic members (711), one end of the fifth elastic member (711) is connected to the fixing frame (710), and the other end is connected to the fixing rod (79), and a positioning groove (712) is provided at the bottom of the guide tube (71).

9. The intelligent manhole cover electronic lock with anti-destruction function according to claim 6, characterized in that: The diameter of the push rod (76) is smaller than the diameter of the first spring pin (15) or the second spring pin (16).

10. An intelligent manhole cover electronic lock with anti-destruction function according to any one of claims 6 to 9, characterized in that: A calibration arrow (18) is fixedly mounted on the manhole cover body (11), a calibration groove (713) is provided on the guide tube (71), and the calibration arrow (18) is used for position calibration of the calibration groove (713).

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